Probably not die attrition as it makes a total curve when this shows the damage on the die from being set MAD wear the edge of the die.

Is the reverse damaged in that area? It may have been squeezed on that area on the reverse? If not then it would be a huge die gouge.

Is the reverse damaged in that area? It may have been squeezed on that area on the reverse? If not then it would be a huge die gouge.





















